Should I upgrade my display or console first?

Currently using an Xbox one x and a tv capable of 1080p at 120hz or 1440p at 60hz. Want to finally upgrade to the newest Gen but wondering if I'd be best off upgrading my display first before saving up for and getting the console (will take time to save up for both so there will be a wait between whenever I get the first purchase and the second)

Would I be better off upgrading my display to something 4k first and sticking with the Xbox one x since that can do 4k already or should I upgrade my console first and worry about getting a display that fully utilizes it later?